公开(公告)号：US07191669B2

公开(公告)日：2007-03-20

申请号：US11052089

申请日：2005-02-08

申请人： Naoki Nakane ,  Shigetoshi Fukaya

发明人： Naoki Nakane ,  Shigetoshi Fukaya

IPC分类号： G01L3/02

CPC分类号： G01L3/104

摘要： A torque sensor is provided which consists of a magnet, an assembly of magnetic rings, and a magnetic sensor. The magnetic rings have claws arrayed thereround at regular intervals. Each of the claws of one of the rings is interposed between adjacent two of the claws of the other ring. Upon input of torque, the magnet is rotated relative to the ring assembly, thereby causing the density of magnetic flux to change as a function of the torque which is sensed by the magnetic sensor. Each of the claws is geometrically shaped so as to increase the density of magnetic flux flowing through the ring assembly, thereby improving the sensitivity of the sensor.

摘要翻译： 提供了由磁体，磁环组件和磁传感器组成的扭矩传感器。 磁环具有定期间隔的周围排列的爪。 其中一个环的每个爪插入在另一个环的相邻的两个爪之间。 在输入扭矩时，磁体相对于环组件旋转，从而导致磁通密度随着由磁传感器感测到的转矩的函数而变化。 每个爪几何形状，以便增加流过环组件的磁通密度，从而提高传感器的灵敏度。

公开(公告)号：US20050126309A1

公开(公告)日：2005-06-16

申请号：US11052089

申请日：2005-02-08

申请人： Naoki Nakane ,  Shigetoshi Fukaya

发明人： Naoki Nakane ,  Shigetoshi Fukaya

IPC分类号： B62D5/06 ,  B62D6/10 ,  G01L3/02 ,  G01L3/10 ,  G01L5/22

CPC分类号： G01L3/104

摘要： A torque sensor is provided which consists of a magnet, an assembly of magnetic rings, and a magnetic sensor. The magnetic rings have claws arrayed thereround at regular intervals. Each of the claws of one of the rings is interposed between adjacent two of the claws of the other ring. Upon input of torque, the magnet is rotated relative to the ring assembly, thereby causing the density of magnetic flux to change as a function of the torque which is sensed by the magnetic sensor. Each of the claws is geometrically shaped so as to increase the density of magnetic flux flowing through the ring assembly, thereby improving the sensitivity of the sensor.

摘要翻译： 提供了由磁体，磁环组件和磁传感器组成的扭矩传感器。 磁环具有定期间隔的周围排列的爪。 其中一个环的每个爪插入在另一个环的相邻的两个爪之间。 在输入扭矩时，磁体相对于环组件旋转，从而导致磁通密度随着由磁传感器感测到的转矩的函数而变化。 每个爪几何形状，以便增加流过环组件的磁通密度，从而提高传感器的灵敏度。

公开(公告)号：US20050046418A1

公开(公告)日：2005-03-03

申请号：US10926282

申请日：2004-08-26

申请人： Shigetoshi Fukaya ,  Yoko Ichikawa ,  Naoki Nakane

发明人： Shigetoshi Fukaya ,  Yoko Ichikawa ,  Naoki Nakane

IPC分类号： G01D5/245 ,  G01B7/14 ,  G01B7/30 ,  G01D3/08 ,  G01D5/12 ,  G01D5/14 ,  G01D5/16 ,  G01P3/488 ,  G01P5/20

CPC分类号： G01D5/145 ,  G01D3/08

摘要： An angular position determining apparatus is provided which includes a magnet affixed to a rotary shaft and a plurality of magnetic sensor elements and works to determine an angular position of the rotary shaft using outputs of the magnetic sensor elements. The apparatus also includes a malfunction detector which specifies which of the magnetic sensor elements is now malfunctioning and takes an action required to determine the angular position of the rotary shaft correctly in the event of such a malfunction.

摘要翻译： 提供了一种角位置确定装置，其包括固定到旋转轴的磁体和多个磁传感器元件，并且用于使用所述磁传感器元件的输出来确定所述旋转轴的角位置。 该装置还包括一个故障检测器，该故障检测器确定了哪个磁性传感器元件现在发生故障，并且在发生这种故障的情况下正确地确定旋转轴的角位置所需的动作。

公开(公告)号：US07227353B2

公开(公告)日：2007-06-05

申请号：US10926282

申请日：2004-08-26

申请人： Shigetoshi Fukaya ,  Yoko Ichikawa ,  Naoki Nakane

发明人： Shigetoshi Fukaya ,  Yoko Ichikawa ,  Naoki Nakane

IPC分类号： G01B7/30 ,  G01R33/06 ,  H01L43/06 ,  H01L43/08

CPC分类号： G01D5/145 ,  G01D3/08

摘要： An angular position determining apparatus is provided which includes a magnet affixed to a rotary shaft and a plurality of magnetic sensor elements and works to determine an angular position of the rotary shaft using outputs of the magnetic sensor elements. The apparatus also includes a malfunction detector which specifies which of the magnetic sensor elements is now malfunctioning and takes an action required to determine the angular position of the rotary shaft correctly in the event of such a malfunction.

摘要翻译： 提供了一种角位置确定装置，其包括固定到旋转轴的磁体和多个磁传感器元件，并且用于使用所述磁传感器元件的输出来确定所述旋转轴的角位置。 该装置还包括一个故障检测器，该故障检测器确定了哪个磁性传感器元件现在发生故障，并且在发生这种故障的情况下正确地确定旋转轴的角位置所需的动作。

公开(公告)号：US08203333B2

公开(公告)日：2012-06-19

申请号：US12491576

申请日：2009-06-25

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： B62D15/0215 ,  G01D5/145

摘要： A rotation angle detecting device includes a housing, a rotating shaft rotatably held by the housing, a driving gear fixed to the rotating shaft, a driven gear engaged with the driving gear, a magnetic field generating part fixed in the driven gear, having a permanent magnet, and configured to generate a magnetic field, a magnetic sensor element configured to detect a change in the magnetic field due to a rotational movement of the magnetic field generating part, and a signal processor configured to process a signal from the magnetic sensor element for detecting a rotation angle of the rotating shaft. Each of teeth of the driving gear has a first circumferential width, each of teeth of the driven gear has a second circumferential width, and the second circumferential width is greater than the first circumferential width.

摘要翻译： 旋转角度检测装置包括壳体，由壳体可旋转地保持的旋转轴，固定到旋转轴的驱动齿轮，与驱动齿轮啮合的从动齿轮，固定在从动齿轮中的磁场产生部，具有永久 磁体，并且被配置为产生磁场;磁传感器元件，被配置为检测由于磁场产生部分的旋转运动引起的磁场变化;以及信号处理器，被配置为处理来自磁传感器元件的信号， 检测旋转轴的旋转角度。 驱动齿轮的每个齿具有第一周向宽度，从动齿轮的每个齿具有第二周向宽度，并且第二周向宽度大于第一周向宽度。

公开(公告)号：US07154262B2

公开(公告)日：2006-12-26

申请号：US11044228

申请日：2005-01-28

申请人： Tsutomu Kamizono ,  Koji Wato ,  Masahiro Taguchi ,  Shinji Ando ,  Shigetoshi Fukaya ,  Kenji Takeda

发明人： Tsutomu Kamizono ,  Koji Wato ,  Masahiro Taguchi ,  Shinji Ando ,  Shigetoshi Fukaya ,  Kenji Takeda

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： A rotation angle detecting device includes a columnar permanent magnet that has a generally ring-shaped cross-section and a pair of magnetic poles, a pair of semi-cylindrical yokes disposed in a circumferential direction opposite the permanent magnet, a rotary shaft fixed to the permanent magnet at a shifted rotation axis and a magnetic sensor disposed in one of circumferential gaps between the yokes. The rotation axis and the magnetic poles are arranged so that the magnetic flux density becomes maximum at portions of the yoke less than 90 degrees angled from the circumferential gap in which the magnetic sensor is disposed.

摘要翻译： 旋转角度检测装置包括具有大致环形截面的柱状永磁体和一对磁极，与永久磁铁相反的圆周方向配置的一对半圆柱形磁轭，固定在该磁极上的旋转轴 位于旋转轴线的永磁体和设置在轭之间的周向间隙中的一个磁传感器。 旋转轴和磁极被布置成使得磁轭密度在与设置有磁性传感器的周向间隙成角度小于90度的部分处变得最大。

公开(公告)号：US08030917B2

公开(公告)日：2011-10-04

申请号：US12331920

申请日：2008-12-10

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30 ,  G01P3/00

CPC分类号： G01D5/145

摘要： A pair of cylindrical magnets with cut away portions has been arranged on both sides of a magnetic sensing element in symmetry of rotation, and a yoke surrounds the magnetic sensing element in contact with outer peripheral surfaces of the pair of the cylindrical magnets with cut away portions. The pair of the cylindrical magnets with cut away portions rotates around an axial center with a concurrent axial displacement along with a rotation of a rotating body. The pair of the cylindrical magnets with cut away portions is arranged in inclined manner against an axis-of-rotation of the magnet. Thereby, the rotation and the displacement in the direction of the axis against the magnetic sensing element of the pair of the cylindrical magnets with cut away portions, and the number of times of rotation can be detected by detecting the size of the magnetic flux density by the magnetic sensing element. The pair of the cylindrical magnets with cut away portions improves the size and linearity of the magnetic field on the axial center.

摘要翻译： 具有切除部分的一对圆柱形磁体已经布置在旋转对称的磁感测元件的两侧，并且轭围绕与一对圆柱形磁体的外周表面接触的磁感测元件，其具有切除部分 。 具有切除部分的一对圆柱形磁体随轴向中心旋转，同时具有旋转体的旋转轴向位移。 具有切除部分的一对圆柱形磁体以相对于磁体的旋转轴线倾斜的方式布置。 因此，可以通过检测磁通密度的大小来检测相对于具有切除部分的一对圆柱形磁体的磁感应元件的轴线的旋转和位移，以及旋转次数 磁感应元件。 具有切除部分的一对圆柱形磁体改善了轴向中心上的磁场的尺寸和线性。

公开(公告)号：US20090319120A1

公开(公告)日：2009-12-24

申请号：US12486275

申请日：2009-06-17

申请人： Shinji HATANAKA ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji HATANAKA ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G06F7/00

CPC分类号： B62D15/0215 ,  B62D5/049 ,  G01D5/145

摘要： A steering angle sensor includes a magnetized body coupled through a gear to a steering shaft so as to rotate with rotation of the steering shaft, a magnetic sensing device for detecting a magnetic field generated by the magnetized body, a signal processing device for detecting a direction of the magnetic field based on the detected magnetic field and for detecting a steering angle of the steering shaft based on the direction of the magnetic field, a correlation signal output sensor mounted on the vehicle to output a correlation signal correlated with the steering angle, and a signal check circuit for determining whether the steering angle is valid or invalid based on comparison between the steering angle and the correlation signal.

摘要翻译： 转向角传感器包括通过齿轮耦合到转向轴的磁化体，以便随着转向轴的旋转而旋转，用于检测由磁化体产生的磁场的磁感测装置，用于检测方向的信号处理装置 基于检测到的磁场的磁场和用于基于磁场的方向检测转向轴的转向角的相关信号输出传感器，安装在车辆上以输出与转向角相关的相关信号;以及 信号检查电路，用于基于转向角和相关信号之间的比较来确定转向角是有效还是无效。

公开(公告)号：US07420363B2

公开(公告)日：2008-09-02

申请号：US11797424

申请日：2007-05-03

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： A rotation angle of a shaft is detected based on changes in levels of magnetic flux from a single magnet that is mounted on the shaft and is moved axially in accordance with rotation of the shaft. Respective detected variations in level of X-direction and Y-direction magnetic flux components (each at right angles to the shaft axis) are used to obtain a first quantity that varies monotonically, and a second quantity that varies periodically, in accordance with increased rotation angle. An accurate value of the shaft rotation angle is calculated based on the first and second quantities, in combination.

摘要翻译： 基于来自安装在轴上的单个磁体的磁通量的水平的变化，并且根据轴的旋转轴向移动来检测轴的旋转角度。 使用各自检测到的X方向和Y方向磁通量分量（每个与轴轴成直角）的变化，以获得单调变化的第一数量和根据增加的旋转周期性地变化的第二数量 角度。 基于第一和第二数量组合地计算轴旋转角度的精确值。

公开(公告)号：US20070268015A1

公开(公告)日：2007-11-22

申请号：US11797424

申请日：2007-05-03

申请人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

发明人： Shinji Hatanaka ,  Kenji Takeda ,  Shigetoshi Fukaya

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： A rotation angle of a shaft is detected based on changes in levels of magnetic flux from a single magnet that is mounted on the shaft and is moved axially in accordance with rotation of the shaft. Respective detected variations in level of X-direction and Y-direction magnetic flux components (each at right angles to the shaft axis) are used to obtain a first quantity that varies monotonically, and a second quantity that varies periodically, in accordance with increased rotation angle. An accurate value of the shaft rotation angle is calculated based on the first and second quantities, in combination.

摘要翻译： 基于来自安装在轴上的单个磁体的磁通量的水平的变化，并且根据轴的旋转轴向移动来检测轴的旋转角度。 使用各自检测到的X方向和Y方向磁通量分量（每个与轴轴成直角）的变化，以获得单调变化的第一数量和根据增加的旋转周期性地变化的第二数量 角度。 基于第一和第二数量组合地计算轴旋转角度的精确值。